Alpinestars Logo

Alpinestars Helmets Size Chart

Road & MX Helmets
Size Head Circumference (cm) Head Circumference (in)
XS 53 - 54 20.8 - 21.2
S 55 - 56 21.6 - 22
M 57 - 58 22.4 - 22.8
L 59 - 60 23.2 - 23.6
XL 61 - 62 24 - 24.4
2XL 63 - 64 24.8 - 25.2
Vector Series (MTB/ATB)
Size Head Circumference (cm) Head Circumference (in)
S 51 - 55 20 - 21.6
M 55 - 59 21.6 - 23.2
L 59 - 63 23.2 - 24.8

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.